Natsume Yuujinchou, Mahoutsukai no Yome Recommendations

Both Mahoutsukai no Yome an Natsume Yuujinchou have a protagonist that can see extraordinary things. They both suffer a great deal in their childhood because of their ability to see what normal people can't. Both anime tell the tale of their protagonists' lives and how they deal with the world that is beyond the ordinary human eyes.

Orphan main character who has difficulty socializing with others who encounters a fantastic character (Elias for Mahoutsukai, Madara for Natsume) who will gradually help them to open up to others and they will live together many adventures in a fantasy world.
The OST are very similar, very sweet, very pleasant (piano, flute)
The art is relatively similar, warm colors, chara design without exaggerations for humanoid characters.

Takashi Natsume and Chise really had the same childhood and abilties. They can see supernatural beings and treated badly by people around them. Also Mahoutsukai no Yome gives you a heartwarming feeling just like Natsume Yuujinchou and gives Spirited Away vibes, too, just like NY.

The first strong association Mahoutsukai no Yome was with Natsume Yuujinchou because the main characters can see things that the rest of people don't see, and because of these peculiarities they are black sheeps being bullied by others. But while time goes on they recognise and accept their unique power and start to understand the world they live in...

Both main characters have a special sight to see supernatural creatures. One of the recurring themes in Natsume Yuujinchou is how people in special cases make friends with youkai. However, due to the mortallity of man, when the human passes the youkai becomes lonely misses them, especially the youkai that possess stationary objects. Often, the youkai already understand this but decide to make friends anyway. Parallel with how Chise in Mahoutsukai no Yome is mortal and frail but so many mythological things like to have her around.